CVE-2026-16496

terraform-mcp-server vulnerable to cross-user credential inheritance if an MCP session ID is obtained by another user

En bref

Sévérité
HIGH 8.9
EPSS
EPSS 0.36 % · centile 29 (2026-10-28)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
HashiCorp
Statut NVD
Deferred

Description

The terraform-mcp-server before version 1.1.0 is vulnerable to an authorization bypass in the streamable-HTTP stateful transport mode that may allow a user who obtains another user's MCP session ID to have their tool calls executed using that user's Terraform credentials. This vulnerability, CVE-2026-16496, is fixed in terraform-mcp-server 1.1.0.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:LHashiCorp
CVSS 3.1HIGH 8.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:LNVD · security@hashicorp.com (Secondary)

Faiblesses (CWE)

Références européennes

Produits affectés

ProduitVersions
HashiCorp · Toolingaffected 0.3.0 < 1.1.0

Références

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD